Zambian sky turns black during bat migration

THE sky above Kasanka National Park turned into a massive wall of black as millions of bats flocked together during migration.

EIGHT million bats flocked together in one of Africa's most spectacular mammal migrations.

And the six-foot-wingspan bats could not have found a tinier corner of the huge continent to live on - just one acre of the vast African forest.

After their daily hunt, the bats return to Kasanka National Park where each tree is forced to hold up to ten million tons of individual bats - making this the highest density mass of warm-blooded mammals on the planet.

British photographer, Will Burrard-Lucas, travelled to Zambia to observe the bats leaving their trees at sundown and returning to the treetops at dawn to sleep.